Photo: Rolex Rankings' number one Lorena Ochoa headlines this week's Sybase Classic Presented by ShopRite, as the 22-time LPGA Tour winner looks to defend her 2006 and 2007 titles at Upper Montclair Country Club in Clifton, N.J. Ochoa is looking to protect her perfect record at the event, having only competed in the Sybase Classic the last three years, but she will have to fight off a field that includes world number two Annika Sorenstam and seven of the remaining top-20 in the Rolex Rankings. Related Article: Ochoa to defend back-to-back victories at the Sybase Classic